Table type adjustments

[seanforyou23]

What: This PR updates the type used in react-table to be a little more explicit. Also updates the example code in the readme, following along as-is in a TypeScript application leads to the following error

I took a stab at using better types for transforms, what do people think about this new type? I'd like to use something more specific than Array<Function> if possible as this doesn't inform of what the inputs and outputs should or can be. Might be good to wait until this is converted fully to TS to address the others, but I'm curious what others think.

[patternfly-build]

PatternFly-React preview: https://2248-pr-patternfly-react-patternfly.surge.sh

[codecov-io]

Codecov Report

Merging #2248 into master will decrease coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2248      +/-   ##
==========================================
- Coverage   79.89%   79.88%   -0.01%     
==========================================
  Files         669      668       -1     
  Lines        8529     8520       -9     
  Branches      734      731       -3     
==========================================
- Hits         6814     6806       -8     
  Misses       1362     1362              
+ Partials      353      352       -1

Flag	Coverage Δ
#patternfly3	85.23% <ø> (ø)	⬆️
#patternfly4	74.89% <ø> (-0.03%)	⬇️
#patternflymisc	95.79% <ø> (ø)	⬆️

Impacted Files	Coverage Δ
...src/components/Pagination/PaginationOptionsMenu.js	92.3% <0%> (-0.55%)	⬇️
...ernfly-4/react-core/src/components/Alert/Alert.tsx	88% <0%> (-0.47%)	⬇️
...ts/src/components/ChartTheme/themes/label-theme.ts
...ct-core/src/components/Pagination/OptionsToggle.js	83.33% <0%> (+3.33%)	⬆️
...ct-charts/src/components/ChartLabel/ChartLabel.tsx	100% <0%> (+5%)	⬆️

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[priley86]

No issues from me and thanks for taking time to look into this. I think any good improvements on this will be helpful for #1950 later. 👍

[karelhala]

I like your approach with providing further information to anyone implementing new ransform function! We should also help consumers with cellTransforms, columnTransforms and formatters because these are essentatially the same bu effect different part of table.

[karelhala]

Looking good now! Thank you.

[karelhala]

Looks really good! Thank you.

[tlabaj]

LGTM